03 ranger issues
So a friend of mine bought an 03 2x4 ranger 3.0 v6 5 spd. The truck was my father-in-laws and he drove 100% highway, it has 180,xxx miles and it has had the check engine light on for awhile off and on. My friend needs to get it smother so he took it to a mechanic who ran the codes and said theres a random misfire and low compression in cylinder #6. And told him he needs a new engine. I've been around cars ( diesels mainly) enough to know that's BS. So we checked the compression on all cylinders and came up with 150 paid all around. The truck has a misfire or hesitation while idling but its not a constant thing. Other than that the truck is cherry. My question to all of you out there is what next. Is there a common problem with these motors. Is this a common occurrence? What should I look, listen for, check etc.....?